Home / 76,725.56-105,877.08-42,263.54

Finding the Fourth Proportional to 76,725.56, 105,877.08 and 42,263.54

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Solution

The fourth proportional to 76,725.56, 105,877.08 and 42,263.54 is: 58,321.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,725.56 : 105,877.08 = 42,263.54 : x
  2. Step 2: Convert to fraction form
    76,725.56/105,877.08 = 42,263.54/x
  3. Step 3: Cross multiply
    76,725.56x = 105,877.08 × 42,263.54
  4. Step 4: Simplify right side
    76,725.56x = 4,474,739,676.28
  5. Step 5: Solve for x
    x = 4,474,739,676.28/76,725.56
  6. Step 6: Final answer
    x = 58,321.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.